TREATMENT CATHETER SYSTEM
First Claim
1. A treatment catheter system for treatment of a bloodstream valve having a circumferential valve tissue structure, comprisingan elongate catheter member to be disposed at the interior of the circumferential valve tissue structure and to be removed therefrom after treatment, wherein the elongate catheter member extends along a longitudinal axis and has an inner lumen and proximal and distal end portions, and whereinthe elongate catheter member comprises a catching component which is or can be positioned at the distal end portion of the elongate catheter member so as to be non-separable from the elongate catheter member at least when being positioned at the distal end portion of the elongate catheter member and which at least when being positioned at the distal end portion of the elongate catheter member comprises a lateral groove which extends transverse to the longitudinal axis and which opens to a lateral outer side so as to form a lateral catching opening, an elongate flexible outer member to be disposed at the exterior of the valve structure at a level of the lateral groove, whereinthe elongate flexible outer member can at least partially extend circumferentially around the catheter member with valve tissue of the circumferential valve tissue structure being correspondingly circumferentially arranged between the elongate catheter member and the elongate flexible outer member, anda catching mechanism operable to reduce a radial distance between the elongate catheter member and the elongate flexible outer member so as to catch at least part of the valve tissue between the outer member and the elongate catheter member within the lateral groove via the catching opening to thereby immobilize the caught valve tissue on the distal end portion of the elongate catheter member.
3 Assignments
0 Petitions
Accused Products
Abstract
A treatment catheter system for treatment of a heart valve includes a circumferential valve tissue structure and an elongate catheter member, and and has an inner lumen, proximal and distal end portions. The system includes a catching component which can be positioned at the distal end portion of the catheter member to be non-separable from the catheter member. An outer member extends circumferentially around the catheter member. The circumferential valve tissue structure is correspondingly arranged between the catheter member and the outer member. A catching mechanism reduces a radial distance between the catheter member and the outer member to catch the valve tissue between the outer member and the catheter member via a catching opening to immobilize and treat the caught valve tissue on the distal end portion of the catheter member.
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Citations
26 Claims
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1. A treatment catheter system for treatment of a bloodstream valve having a circumferential valve tissue structure, comprising
an elongate catheter member to be disposed at the interior of the circumferential valve tissue structure and to be removed therefrom after treatment, wherein the elongate catheter member extends along a longitudinal axis and has an inner lumen and proximal and distal end portions, and wherein the elongate catheter member comprises a catching component which is or can be positioned at the distal end portion of the elongate catheter member so as to be non-separable from the elongate catheter member at least when being positioned at the distal end portion of the elongate catheter member and which at least when being positioned at the distal end portion of the elongate catheter member comprises a lateral groove which extends transverse to the longitudinal axis and which opens to a lateral outer side so as to form a lateral catching opening, an elongate flexible outer member to be disposed at the exterior of the valve structure at a level of the lateral groove, wherein the elongate flexible outer member can at least partially extend circumferentially around the catheter member with valve tissue of the circumferential valve tissue structure being correspondingly circumferentially arranged between the elongate catheter member and the elongate flexible outer member, and a catching mechanism operable to reduce a radial distance between the elongate catheter member and the elongate flexible outer member so as to catch at least part of the valve tissue between the outer member and the elongate catheter member within the lateral groove via the catching opening to thereby immobilize the caught valve tissue on the distal end portion of the elongate catheter member.
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24. A method for surgical treatment of a bloodstream valve comprising a circumferential valve tissue structure of a patient using a treatment catheter system comprising a catheter member having a longitudinal axis and a lateral groove, and an elongate outer member, the method comprising
placing the lateral groove of the catheter member in an interior of the circumferential valve tissue structure, placing the elongate outer member at least partially around an outside of the circumferential tissue structure at an axial level, with respect to the longitudinal axis, of the lateral groove, reducing a distance between the elongate outer member and the lateral groove so as to at least partially force tissue of the circumferential valve tissue structure into the lateral groove, and removing the catheter member and the elongate outer member from the patient.
Specification